Liquid coupler

A liquid coupler, comprising:

• a first adaptor component including a first opening having a polygonal cross-section with a plurality of flat sides, the first opening disposed through the first adaptor component, the first opening configured to enable a first liquid line to be disposed therethrough;
• a second adaptor component including a connection part, the connection part includes a second opening, the connection part configured to enable the second adaptor component to be fixed to a second liquid line;
• a fixing component surrounding an outer surface of the first liquid line;
• and
• a plurality of connecting assemblies, each connecting assembly including a locking component coupled to the first adaptor component, and a receiving component coupled to the second adaptor component, wherein:
• the receiving component includes a cavity having a polygonal inner surface corresponding to the polygonal cross-sectional shape,
• the locking component includes a retaining portion disposed along a perimeter of the polygonal cross-sectional shape and contacting the polygonal inner surface of the cavity, and
• the fixing component includes a plurality of contact regions circumferentially spaced and aligned with the flat sides of the polygonal cross-sectional shape.